Two saltpeter vats with large pile of nitrite dirt behind them, Mammoth Cave, Kentucky, 1892Mammoth Cave National ParkPhotograph -saltpeter vats (glass negative) glass negative: the first saltpeter vats in Mammoth Cave. Kentucky: This photograph was taken by Ben Hains; printed in New Albany, Indiana; 1892. The photo shows the salt peter vats in the rotuna in Mammoth Cave. The photo shows two vats with large piles of nitrite dirt behind them- all of these things are in the rotunds, located in the historic section of Mammoth Cave. This is a glass negative for a black and white photograph. There is a printed inscription across the bottom of the photo "04 first saltpeter vats" and "copyrighted 1892 by H. C. Ganter.. Ben Hains, cave photographer.. New Albany, Ind, U.S.A.". measurements: height 202 mm, width: 252 mm. Thickness: 2 mm. Condition: good the original blue 10-254 lists this as a gift from Ellis Jones on 14 Dec, 1981. Originally housed gsu c, sh 4 with maca 3608-3645, 3724-3743, 3746-3749, 3872-3888, 3903. Caves, geology, mining, minerals.